Moteur de recherche de fiches techniques de composants électroniques |
|
74HC21D Fiches technique(PDF) 5 Page - NXP Semiconductors |
|
74HC21D Fiches technique(HTML) 5 Page - NXP Semiconductors |
5 / 14 page 74HC21_5 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 05 — 7 May 2009 5 of 14 NXP Semiconductors 74HC21 Dual 4-input AND gate 10. Dynamic characteristics [1] tpd is the same as tPHL and tPLH. [2] tt is the same as tTHL and tTLH. [3] CPD is used to determine the dynamic power dissipation (PD in µW): PD =CPD × VCC2 × fi × N+ ∑ (CL × VCC2 × fo) where: fi = input frequency in MHz; fo = output frequency in MHz; CL = output load capacitance in pF; VCC = supply voltage in V; N = number of inputs switching; ∑ (C L × VCC 2 × f o) = sum of outputs. Table 7. Dynamic characteristics GND = 0 V; test circuit see Figure 8. Symbol Parameter Conditions 25 °C −40 °C to +85 °C −40 °C to +125 °C Unit Min Typ Max Min Max Min Max tpd propagation delay nA, nB, nC or nD to nY; see Figure 7 [1] VCC = 2.0 V - 33 110 - 140 - 165 ns VCC = 4.5 V - 12 22 - 28 - 33 ns VCC = 6.0 V - 10 19 - 24 - 28 ns VCC = 5.0 V; CL = 15 pF - 10 - ---- ns tt transition time nY output; see Figure 7 [2] VCC = 2.0 V - 19 75 - 95 - 110 ns VCC = 4.5 V - 7 15 - 19 - 22 ns VCC = 6.0 V - 6 13 - 16 - 19 ns CPD power dissipation capacitance VI = GND to VCC [3] - 15 - ---- pF |
Numéro de pièce similaire - 74HC21D |
|
Description similaire - 74HC21D |
|
|
Lien URL |
Politique de confidentialité |
ALLDATASHEET.FR |
ALLDATASHEET vous a-t-il été utile ? [ DONATE ] |
À propos de Alldatasheet | Publicité | Contactez-nous | Politique de confidentialité | Echange de liens | Fabricants All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |